Math Destroyer Test 1 #28

[tayloreve]

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So Math Destroyer came in today (yippee, not really) and I am finally realizing how much math I've forgotten since high school and how far I have to go.


On #28, what is the rainbow looking symbol called? Doesn't give an explanation in the solutions...but I came to conclusion that it meant where the two criteria of G and H overlap? Is that correct? It worked for me....but no idea what it really means... lol


Thanksssss!

 

[sagarkanodiya]

U - Union symbol
inverted U- intersection symbol


http://www.themathlab.com/geometry/section2/union and intersection.htm

 

[tayloreve]

Thanks so much.

Just what I needed!

 

[ToBeDDSS]

U : union
n : intersection or common elements to both sets

 

[ib51623]

Union (U) is the set of #s/elements that are in either sets
Intersections(n Aka upside down U) is the set of element which appear in both sets.

Just started on math destroyer today also!🙂

What would you recommend the most effective way to get through it?

Thanks